I usually used 5 to 6 hours too. Since I am still new to it, I need to explore things in it for me to understand better on this site. But those hours were not enough for me. I honestly enjoyed reading the discussions, responding to some and starting my own discussions too. I like it. Plus, I start to gain more friends here. I used to be on my friendster more often before I discover this site.
But now.....awww!..this gonna be my primary home site.LOL I am enjoying here seriously. :)